autobuild[sn-devel-144]: intermittent test failure detected

[autobuild]

The autobuild test system (on sn-devel-144) has detected an intermittent failing test in 
the current master tree.

The autobuild log of the failure is available here:

   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-06-09-1210/flakey.log

The failure seems to be in the "ctdb" suite, whose build logs are available here:

   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-06-09-1210/ctdb.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-06-09-1210/ctdb.stdout
  
The top commit at the time of the failure was:

commit 7ddbf6035dfec6806536f99d0257245f70661363
Author: Günther Deschner <gd at samba.org>
Date:   Wed May 30 09:27:49 2018 +0200

    s4-heimdal: Fix the format-truncation errors.
    
    ../source4/heimdal/lib/com_err/compile_et.c: In function ‘generate_h’:
    ../source4/heimdal/lib/com_err/compile_et.c:138:33: error: ‘%s’ directive output may be truncated writing up to 127 bytes into a region of size 126 [-Werror=format-truncation=]
         snprintf(fn, sizeof(fn), "__%s__", hfn);
                                     ^~     ~~~
    ../source4/heimdal/lib/com_err/compile_et.c:138:5: note: ‘snprintf’ output between 5 and 132 bytes into a destination of size 128
         snprintf(fn, sizeof(fn), "__%s__", hfn);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ../source4/heimdal/lib/com_err/compile_et.c: In function ‘main’:
    ../source4/heimdal/lib/com_err/compile_et.c:234:35: error: ‘.h’ directive output may be truncated writing 2 bytes into a region of size between 1 and 128 [-Werror=format-truncation=]
         snprintf(hfn, sizeof(hfn), "%s.h", Basename);
                                       ^~
    ../source4/heimdal/lib/com_err/compile_et.c:234:5: note: ‘snprintf’ output between 3 and 130 bytes into a destination of size 128
         snprintf(hfn, sizeof(hfn), "%s.h", Basename);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ../source4/heimdal/lib/com_err/compile_et.c:235:35: error: ‘.c’ directive output may be truncated writing 2 bytes into a region of size between 1 and 128 [-Werror=format-truncation=]
         snprintf(cfn, sizeof(cfn), "%s.c", Basename);
                                       ^~
    ../source4/heimdal/lib/com_err/compile_et.c:235:5: note: ‘snprintf’ output between 3 and 130 bytes into a destination of size 128
         snprintf(cfn, sizeof(cfn), "%s.c", Basename);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    cc1: some warnings being treated as errors
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13437
    
    Guenther
    
    Signed-off-by: Günther Deschner <gd at samba.org>
    Reviewed-by: Andreas Schneider <asn at samba.org>
    
    Autobuild-User(master): Andreas Schneider <asn at cryptomilk.org>
    Autobuild-Date(master): Fri Jun  8 13:23:51 CEST 2018 on sn-devel-144

and the last 50 lines of the stdout log were:


 PASSED  tests/cunit/cmdline_test_001.sh
 PASSED  tests/cunit/comm_test_001.sh
 PASSED  tests/cunit/comm_test_002.sh
 PASSED  tests/cunit/config_test_001.sh
 PASSED  tests/cunit/config_test_002.sh
 PASSED  tests/cunit/config_test_003.sh
 PASSED  tests/cunit/config_test_004.sh
 PASSED  tests/cunit/config_test_005.sh
 PASSED  tests/cunit/config_test_006.sh
 PASSED  tests/cunit/conf_test_001.sh
 PASSED  tests/cunit/db_hash_test_001.sh
 PASSED  tests/cunit/hash_count_test_001.sh
 PASSED  tests/cunit/path_tests_001.sh
 PASSED  tests/cunit/pidfile_test_001.sh
 PASSED  tests/cunit/pkt_read_001.sh
 PASSED  tests/cunit/pkt_write_001.sh
 PASSED  tests/cunit/porting_tests_001.sh
 PASSED  tests/cunit/protocol_test_001.sh
 PASSED  tests/cunit/protocol_test_002.sh
 PASSED  tests/cunit/protocol_test_012.sh
 PASSED  tests/cunit/protocol_test_101.sh
 PASSED  tests/cunit/protocol_test_102.sh
 PASSED  tests/cunit/protocol_test_111.sh
 PASSED  tests/cunit/protocol_test_201.sh
 PASSED  tests/cunit/rb_test_001.sh
 PASSED  tests/cunit/reqid_test_001.sh
 PASSED  tests/cunit/run_event_001.sh
 PASSED  tests/cunit/run_proc_001.sh
 PASSED  tests/cunit/sock_daemon_test_001.sh
 PASSED  tests/cunit/sock_io_test_001.sh
 PASSED  tests/cunit/srvid_test_001.sh
 PASSED  tests/eventd/eventd_001.sh
 PASSED  tests/eventd/eventd_002.sh
 PASSED  tests/eventd/eventd_003.sh
 PASSED  tests/eventd/eventd_004.sh
 PASSED  tests/eventd/eventd_005.sh
 PASSED  tests/eventd/eventd_006.sh
 PASSED  tests/eventd/eventd_007.sh
 PASSED  tests/eventd/eventd_011.sh
 PASSED  tests/eventd/eventd_012.sh
 PASSED  tests/eventd/eventd_013.sh
 PASSED  tests/eventd/eventd_014.sh
 PASSED  tests/eventd/eventd_021.sh
*FAILED* tests/eventd/eventd_022.sh

43/44 tests passed

Removing TEST_VAR_DIR=/memdisk/autobuild/fl/b58341/ctdb/ctdb/tests/var
autotest exited with exit status 1